The Wagner Precision RA instrument line covers every step of the chairside and laboratory finishing workflow. A comprehensive shape library spanning flame, wheel, cylinder, point, and cup geometries in multiple grits — engineered for use in standard contra-angle handpieces.
Wagner Precision’s RA instrument line is engineered to provide a single-source solution
for contra-angle handpiece finishing in both the dental laboratory and the operatory.
Every instrument in the RA range is manufactured to consistent dimensional tolerances,
ensuring smooth seating, minimal vibration, and predictable performance at the speeds
demanded by modern dental procedures.
Whether addressing gross contouring, interproximal finishing, occlusal anatomy refinement,
or pre-polish preparation, the RA line has a shape and grit specification for the task.
All instruments are compatible with standard ISO RA shanks and contra-angle handpieces
from all major manufacturers.
RA (Contra-Angle)
ISO standard RA latch-type shank
5,000 – 20,000 RPM
Varies by grit and material — see table below
Select the appropriate shape for the restoration surface, embrasure geometry,
and clinical or laboratory access requirement.
Tapered profile ideal for interproximal embrasures, gingival margins, and subgingival access. Excellent for CEJ finishing.
Broad disc geometry for rapid coverage of occlusal planes, buccal surfaces, and flat restoration areas.
Parallel sides for axial wall finishing, crown margins, and flat surface reduction. Versatile all-purpose shape.
Fine tapered tip for pinpoint surface detail work, pit and fissure access, and precise spot corrections.
Concave bowl profile for occlusal fossa anatomy refinement and internal surface polishing of concave restorations.
Use these guidelines as a starting point. Adjust based on material hardness,
instrument size, and the degree of surface change required.
| Stage | Grit Level | Recommended RPM | Notes |
|---|---|---|---|
| Gross Contouring | Coarse | 15,000 – 20,000 | Use intermittent pressure; avoid sustained contact to prevent heat buildup |
| Secondary Smoothing | Medium | 10,000 – 15,000 | Light, overlapping strokes for uniform scratch depth |
| Pre-Polish | Fine | 8,000 – 12,000 | Surface should develop a satin sheen before transitioning to polishing |
| Final Polish | Extra Fine | 5,000 – 10,000 | Use with the Panther system or Finale for mirror gloss |
